package com.candy.control;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/deleteCookie")
public class DeleteCookieServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//解决中文乱码问题
        resp.setCharacterEncoding("UTF-8");
        resp.setContentType("text/html;charset=UTF-8");
        //        获取所有Cookie
        Cookie[] cookies = req.getCookies();
//        遍历Cookie
        for (Cookie cookie : cookies) {
//            判断若cookie的name为username
            if(cookie.getName().equals("username")) {
//                删除该cookie
                cookie.setMaxAge(0);
//                将cookie添加到响应头
                resp.addCookie(cookie);
            }
        }
        resp.getWriter().println("删除成功");
    }
}
